diff --git a/controls_NukiSmart.txt b/controls_NukiSmart.txt
index dba6012..5f71fd0 100644
--- a/controls_NukiSmart.txt
+++ b/controls_NukiSmart.txt
@@ -1,4 +1,4 @@
-UPD 2021-11-26_17:16:05 9207 FHEM/73_NUKIBridge.pm
-UPD 2021-11-26_18:16:04 7548 FHEM/74_NUKIDevice.pm
-UPD 2021-11-26_19:31:40 35495 lib/FHEM/Devices/Nuki/Bridge.pm
-UPD 2021-11-26_18:46:30 15635 lib/FHEM/Devices/Nuki/Device.pm
+UPD 2021-11-27_08:19:45 9207 FHEM/73_NUKIBridge.pm
+UPD 2021-11-27_08:19:45 7548 FHEM/74_NUKIDevice.pm
+UPD 2021-11-27_08:19:45 35495 lib/FHEM/Devices/Nuki/Bridge.pm
+UPD 2021-11-27_09:51:08 15681 lib/FHEM/Devices/Nuki/Device.pm
diff --git a/lib/FHEM/Devices/Nuki/Device.pm b/lib/FHEM/Devices/Nuki/Device.pm
index 681852f..d6660a8 100644
--- a/lib/FHEM/Devices/Nuki/Device.pm
+++ b/lib/FHEM/Devices/Nuki/Device.pm
@@ -218,7 +218,9 @@ sub Define {
 
     $iodev = $hash->{IODev}->{NAME};
 
-    $hash->{BRIDGEAPI} = $::defs{$iodev}->{BRIDGEAPI};
+    $hash->{BRIDGEAPI} = $::defs{$iodev}->{BRIDGEAPI}
+      if ( defined(iodev)
+        && $iodev );
 
     my $d = $::modules{NUKIDevice}{defptr}{$nukiId};